My DD is 2,5 week old now, born via cesar at 37 weeks. Her birth weight was very low (2570) and dropped to 2400. She breasfed pretty much straight away after birth, few problems with attachement, no problems with supply. Because she was so little, ( still is) she is not an efficient feeder and tend to fall asleep easly when breastfed. That's why I also express after every feed and supplement her with it, she takes from 60-80 ml. The problem is that feeding sessions are stretching to 1,5 hours because she is being put at breast for 15 min each breadt, then gets extra milk, fusses a lot for a while and wants more milk, and then again fusses and wants more milk. Yes you can say why don't you give her more milk in the first place, well she cannot take any more straight away and looks pretty stuffed and full, but 20 min later is ok with more. My supply is ok, but Im struggling during the night when supply is not great and she keeps asking for more.